/*-
 * ConcatenatedMessage.java
 *
 * $LastChangedBy:  $
 * $LastChangedRevision:  $
 * $LastChangedDate:  $
 * $HeadURL: $
 *
 * Copyright (c) 2008, Stein Gunnar Bakkeby
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Stein Gunnar Bakkeby nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.googlecode.attention.sms.pdu;



public class ConcatenatedMessage {

  final TPDU[] concat;
 
  public ConcatenatedMessage(final TPDU sms, final int ref, final int max,
        final int seq) {
    if (max < 1 || max > 255 || seq < 1 || seq > max) {
      throw new IllegalArgumentException(
          "ref: " + ref + ", max: " + max + ", seq: " + seq);
    }
    concat = new TPDU[max];
    addConcat(sms, seq);
  }

  public boolean hasAllParts() {
    for (final TPDU sms : concat) {
      if (sms == null) return false;
    }
    return true;
  }
  
  public TPDU[] getParts() {
    return concat;
  }

  public void addConcat(final TPDU sms, final int seq) {
    concat[seq - 1] = sms;
  }
  
  public String getMessage() {
    if (concat == null) {
      return "";
    }
    final StringBuilder message = new StringBuilder(concat.length * 160);
    for (final TPDU sms : concat) {
      if (sms != null) {
        message.append(sms.getMessage());
      }
    }
    return message.toString();
  }
}